This is just like our Mediterranean house in Canberra. It was rendered white which never cracked or got mould on it, though I would prefer it to be done in a modern colour like our current home on the Gold Coast which is a rich sand colour with a heavy bagged appearance that has faded from a strong dark sand. With beautiful dark patterned orangey tiles all outside that reflect their colour on the walls during the day it is quite magical. Roof tiles also spray painted after being re pointed. I suggest you amplify the lovely quality of arches and don't go for what is trendy. But go with colour scheme for the house design. At our entrance there is a built up garden courtyard feature with wonderful iron gates and a large water feature in the courtyard that the lounge room looks out to and has the French doors that also opened onto the courtyard garden. Commence the courtyard wall to the left side of the steps and create a flat area at the gated entrance where we had a north single gate and a west double gate. The Pines were planted on the outside of this courtyard wall and gave extra privacy and blocked the westerly afternoon sun. The house always looked impressive, yet was just a simple presentation.

Thanks Anne and I will look at pale grey given the maintenance considerations. I have already paid for a colour consultant who was great but the Reckless grey she suggested for the house render and basalt gutters/fascia and front wall were too grey when we had the render samples put on and while it had a modern look, it was not giving the beach/coastal feel. I will head back into our inspirations paint store this morning to see if I can find the warm grey colours that have the most similar colour make up to Dune, and go from there. Anne you don't happen to know the dulux colour most close in composition to Colorbond Dune so I know where to start? Thanks again and I would love to hear from anyone who has got a dune roof and hear if they tried light coloured gutters and what render colours they have used on their walls.

Australia has nice examples of painted and rendered Art Deco homes. If it was a different kind of brick I would say keep it, but I think painting/rendering would really brighten the place. I love the windows. Although all pics here don't exactly match your style, they are all of that era. As mentioned in above comments, there are mix of landscaping styles that suit from conifer/gravel/grass to cottage rose garden to an Australian native garden. Do what reflects you and how much time you have for your garden.

in that case I would stick with the monument. However I must admit that I do love that colour and we are having it on our new build. I like it because it has the richness of a darker contrast without the problem of black fading and looking faded whereas monument can experience a degree of fading over time and it would not be as obvious.